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C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区,为创新赋能!

...问0x4的内存地址,不crash才怪。于是,你一定会有如下的问题:1)为什么不是 13行if语句出错?f.a被初始化为空了嘛,用空指针访问成员变量为什么不crash?2)为什么会访问到了0x4的地址?靠,4是怎么出来的?3)代码中的第4行...
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PHP-FPM doesn't write to error log

I've just installed a nginx+php-fpm server. Everything seems fine except that PHP-FPM never writes error to its log. 11 Ans...
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京东618:算法让UV价值提升200%+,用智能卖场缩短购物路径 - 更多技术 - 清...

...区画像,除了界面的差异,两者在后端的处理上要解决的问题有什么不同?对推荐搜索和移动研发、交易平台研发的协作有什么样的要求? 智能卖场团队:这两者要解决的问题本质上是相同的,所以用的算法引擎是相同的。但...
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How to enable PHP short tags?

... Set short_open_tag=On in php.ini And restart your Apache server. share | improve this answer | follow | ...
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Laravel requires the Mcrypt PHP extension

...web enabled extensions and command line enabled extensions can differ. Run php -m in your terminal and check to see if mcrypt is listed. If it's not then check where the command line is loading your php.ini file from by running php --ini from your terminal. In this php.ini file you can enable the e...
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Phpcms v9 实现首页|列表页|内容页点击量调用的代码 - 更多技术 - 清泛网 -...

Phpcms v9 实现首页|列表页|内容页点击量调用的代码1、内容页的点击量获取比较简单,一般默认模板中自带:<span id="hits">< span>...<script language="JavaScript" src="{APP_PATH}api.p...1、内容页的点击量获取比较简单,一般默认模板中自带: ...
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BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...于事件驱动思想来完成的,其主要想解决的是BIO的大并发问题: 在使用同步I/O的网络应用中,如果要同时处理多个客户端请求,或是在客户端要同时和多个服务器进行通讯,就必须使用多线程来处理。也就是说,将每一个客户...
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jQuery using append with effects

...tatusupdate").submit( function () { $.post( 'ajax.php', $(this).serialize(), function(data){ $("#box").prepend($(data).fadeIn('slow')); $("#status").val(''); } ); even...
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How to check whether a string is Base64 encoded or not

... Try like this for PHP5 //where $json is some data that can be base64 encoded $json=some_data; //this will check whether data is base64 encoded or not if (base64_decode($json, true) == true) { echo "base64 encoded"; } e...
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How do I upgrade PHP in Mac OS X?

... You may want to check out Marc Liyanage's PHP package. It comes in a nice Mac OS X installer package that you can double-click. He keeps it pretty up to date. http://php-osx.liip.ch/ Also, although upgrading to Snow Leopard won't help you do PHP updates in the futu...